Stackable chair



FIG. 1 is a front view of a stackable chair showing my new design;

FIG. 2 is a left side view of the chair, the right view being a mirror image thereof;

FIG. 3 is a rear view of the chair;

FIG. 4 is a top view of the chair; and,

FIG. 5 is a bottom view of the chair.

FIGS. 4 and 5 have been shown on an enlarged scale with respect to FIGS. 1 through 3. 

The ornamental design for a stackable chair, as shown and described. 